Lap mounted adjustable tray



FIG. 1 is a perspective view of a lap mounted adjustable tray showing my new design;

FIG. 2 is an enlarged end elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a lap mounted adjustable tray, as shown and described. 